Gitweb: http://git.fedorahosted.org/git/?p=lvm2.git;a=commitdiff;h=f02cdcff0084a323c... Commit: f02cdcff0084a323c9651d7ca2f22d60c83bcf3d Parent: 1f3d04cddf5a447de9bfb81ed22d0ccbe58e82fc Author: Peter Rajnoha prajnoha@redhat.com AuthorDate: Tue Aug 4 10:16:45 2015 +0200 Committer: Peter Rajnoha prajnoha@redhat.com CommitterDate: Tue Aug 4 10:35:31 2015 +0200
coverity: check vg->lvm1_system_id is not NULL before calling strncmp with that
lib/format1/import-export.c:167: var_deref_model: Passing null pointer "vg->lvm1_system_id" to "strncmp", which dereferences it. --- lib/format1/import-export.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/lib/format1/import-export.c b/lib/format1/import-export.c index 275583d..9e49a96 100644 --- a/lib/format1/import-export.c +++ b/lib/format1/import-export.c @@ -164,7 +164,7 @@ int export_pv(struct cmd_context *cmd, struct dm_pool *mem __attribute__((unused /* Is VG already exported or being exported? */ if (vg && vg_is_exported(vg)) { /* Does system_id need setting? */ - if ((vg->lvm1_system_id && !*vg->lvm1_system_id) || + if (!vg->lvm1_system_id || !*vg->lvm1_system_id || strncmp(vg->lvm1_system_id, EXPORTED_TAG, sizeof(EXPORTED_TAG) - 1)) { if (!generate_lvm1_system_id(cmd, (char *)pvd->system_id, EXPORTED_TAG))